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Ah Alk <br /> MW <br /> We are stipulating that if there should ever be plans to build on the two subject parcels, there must <br /> be a 25 foot deep percolation test done in the proposed location of the seepage pits. The leachfield(s) <br /> should consist of 12,000 square feet. This leachfield area will be largely dependent upon the number <br /> of bedrooms a proposed house will have. Additionally, if there will be several people inhabiting the <br /> residence, particularly children, a septic system should be oversized to accommodate additional <br /> wastewater flows. A 50% standby replacement area must also be incorporated into the design of any <br /> septic system. All related septic system structures and any domestic well must comply with the <br /> published "distance" requirements from property borders, roads, irrigation fields, etc. <br /> The referenced leachfield area will help ensure stability and guard against leachfield failure. A failure <br /> would primarily result from the advanced formation of a "biomat" or "clogging mat" on the wetted <br /> soil/effluent interface. This mat is composed mostly of aerobic and anaerobic bacteria and bacterial <br /> products consisting of a slime of polyuronides and polysaccharides. If the soil/effluent interface is <br /> well aerated, a variety of soil microfauna such as nematodes and protozoa may digest the clogging <br /> mat bacteria. Since the subsurface soils consist of a heavier clay material, anaerobic conditions will <br /> probably prevail which may hasten leachfield failure. In this scenario, the seepage pits then manage <br /> the effluent, although seepage pits can also develop biomat formation. <br /> [6] LIMITATIONS <br /> The conclusions of this Soil Suitability Study are based upon past and present information concerning <br /> the location and results of percolation testing. Results of the perc testing can only be assumed to be <br /> representative of the subsurface conditions encountered in the area of testing. <br /> It is our opinion the findings included in this study are a reasonable assessment of the current subject <br /> property and surrounding study area conditions regarding septic system density, nitrate-nitrogen <br /> sources and potential impact to the underlying groundwater. This opinion cannot constitute a <br /> guarantee or warranty, either expressed or implied. <br /> Respectfully submitted, <br /> QUALITY CONT OL INSPECTION, INC. <br /> Don Chesney, R.E.A. ;7 <br /> +. Qmiih1 (o"trol Inspection <br /> F <br />